Can occur with a minimal amount of water on the roadway.

Rarely occurs with large trucks.

Usually happens when vehicles are traveling faster than 65 mph.

Is required on slippery surfaces.

Idaho CDL Tank 2 - DMV Written Test Questions with Answers

Q.1

If you realize you may be running late to your destination, you should:

Speed up.
Get upset.
Deal with it and drive at a safe speed.

Q.2

The trailer hand valve:

Should always be used for parking.
Should only be used for parking on a downgrade.
Should never be used for parking.

Q.3

You will often have to drive your vehicle under bridges and overpasses. If approaching such an opening, you should:

Assume the posted clearance height is accurate.
Assume the posted clearance height is inaccurate.
Measure the height of the opening before proceeding.

Q.4

Load hazardous materials:

Near heat sources.
Away from heat sources.
Away from shadows.

Q.5

What is the average driver’s reaction time?

1/16 of a second
1/8 of a second
3/4 of a second

Q.6

How much water must be present for a vehicle to hydroplane?

Usually several inches
A good amount, such as a large puddle
A small amount

Q.7

In hot weather, spots on the pavement where tar is bleeding:

Are very slippery.
Offer the same amount of traction as the rest of the roadway.
Offer more traction than the rest of the roadway.

Q.8

Heights posted at bridges:

Are always accurate.
Are legally binding.
Can be incorrect.

Q.9

Hydroplaning:

Rarely occurs with large trucks.
Usually happens when vehicles are traveling faster than 65 mph.
Can occur with a minimal amount of water on the roadway.

Q.10

What eliminates alcohol from the bloodstream?

Coffee
Exercise
Time

Q.11

Rough acceleration:

Is recommended.
Can cause mechanical damage.
Is required on slippery surfaces.

Q.12

When backing up your tractor while coupling it to a trailer, the trailer brakes should be:

Deactivated.
Locked.
Unlocked.

Q.13

When backing with a trailer, turning toward the driver’s side is encouraged because:

The driver will have the best possible view.
Power lines should be on the passenger's side.
Other drivers can offer assistance on the passenger's side.

Q.14

Who must label hazardous materials?

The shipper
The loader
The driver

Q.15

How can a driver maintain alertness while driving?

Stay fit and healthy
Keep the cab warm
Eat heavy foods

Q.16

If confronted by an aggressive driver, you should:

Keep your vehicle in front of them.
Make eye contact with them
Ignore their gestures.

Q.17

If driving so slowly that you could impede the flow of traffic, you should:

Drive on the shoulder.
Drive while using your emergency flashers.
Drive without using any lights.

Q.18

When accelerating on a surface with poor traction, such as a wet road, a driver should:

Speed up quickly.
Speed up slowly.
Not be concerned about the pavement.

Q.19

Before driving a power steering-equipped vehicle, you should make sure that:

The fluid is at a proper level.
The hoses are connected to the battery.
Any leak is small.

Q.20

If a tank is found to be leaking, the driver should:

Drive with their flashers on to warn other motorists.
Get the leak fixed immediately.
Finish the trip and then let someone know.